baber/WOPTO huggingface dataset:
Patent GB-957030-A (GB)
Title: Meter prover
IPC: G01F25/00
Filed: 1962-12-17
Abstract: 957,030. Fluid flowmeters. F. H. MALONEY CO. Dec. 17, 1962 [May 17, 1962], No.47541/62. Heading G1R. [Also in Division G4] A prover for a flow-meter 10 in a pipeline 11- 15 has a loop 13 along which the passage of a plug 42 having at least one circular cross-section of substantially the pipe size is signalled between positions 18 and 19 and a by-pass 16 which includes a valve 17 and which is in part (36) larger than pipe diameter and in part (16) smaller, so that in the latter part the rate of fall of the plug is decreased. The valve is spherical and can be rotated into three positions so that its aperture 44 can either receive a plug inserted at 34, or discharge a plug down the pipe 16 or receive and retain a plug from the pipe 48 after transit. The valve is operated by known hydraulic gear 46 controlled by a valve 60. A ramp 50 in the lower tee-piece 12 deflects the ball into the loop and bars 62 in the upper tee-piece 14 direct it back into the by-pass. The meter 10, to be proved generates electrical pulses at 22 for time-comparison with the signal interval for transit of the plug between 18 and 20. (see Division G4).
Patent GB-1328760-A (GB)
Title: Stator for a permanent magnet dynamo electric machine including magnet retaining means
IPC: H02K1/17
Filed: 1971-10-13
Abstract: 1328760 Springs FORD MOTOR CO Ltd 13 Oct 1971 [15 Dec 1970] 47593/71 Heading F2S [Also in Division H2] A spring for mounting permanent magnets in the stator yoke of a dynamo-electric machine (see Division H2) comprises a rectangular body portion 12 having a stiffening rib 14, 16 disposed at an angle to each of its longer sides and tabs 18, 20, 22 and 24 at the ends of the ribs. The spring is made of spring steel having a thickness in the range 0À018 to 0À021 inches.
Patent GB-1123267-A (GB)
Title: Ionization chamber
Inventor: BETCHEN GEORGES
IPC: H01J47/04
Filed: 1966-10-28
Abstract: The wall of an ionization chamber containing a filling of air is formed of an alloy of Be with at least one of the elements Al, Mg and Si, the proportion of Be being such that the co-efficient of response of the wall to b  radiation and to g  and X-ray photons is substantially identical with the co-efficient of response of air, the co-efficient of response of a material being defined as the ratio of energy absorbed in the material to energy absorbed in human body tissues.  Suitable alloy compositions are by weight:-  (1) Be 81-89%, preferably 85 \sB 0.5% A1 remainder  (2) Be 77-85%, preferably 81 \sB 0.5% Mg remainder  (3) Be 84-92%, preferably 88 \sB 0.5% Si remainder (4) Be 85.35% A1 13.25% Si 1.4%
Patent GB-1428713-A (GB)
Title: Method of manufactruing a semiconductor device
IPC: H01L29/00
Filed: 1973-10-18
Abstract: 1428713 Semi-conductor device HITACHI Ltd 18 Oct 1973 [27 Oct 1972] 48695/73 Heading H1K In a semi-conductor device having a conductor or semi-conductor layer on an insulating layer on a semi-conductor substrate and wherein the insulating layer is etched using the conductor or semi-conductor layer as a mask, the surface of the conductor or semi-conductor layer is converted into an insulator to such an extent that a peripheral edge projection of the conductor or semi-conductor layer is wholly turned into insulator, the projection having arisen from side etching of a side portion of the insulating layer. A silicon substrate 1 is provided with two thermally grown SiO 2  layers 2, 3 which are covered with polycrystalline Si (4) by thermal decomposition of silane. Portions of the polycrystalline layer and the oxide film 3 are removed by etching to leave a silicon gate 4a with projecting edges 4b and boron diffused in to give source and drain region 5, 6. The exposed gate and substrate surfaces are thermally oxidized (7) and the entire upper surface covered with SiO 2  8 by oxidation of silane. Contact holes for the source and the drain are formed and aluminium 9 evaporated on to the entire surface, the aluminium being subsequently photoetched. The insulating layer may be silicon nitride or a multi-layer of nitride and oxide. The gate electrode may be of Al, Mo or W.
Patent GB-1469762-A (GB)
Title: Equipment for milking parlours
IPC: A01J5/017
Filed: 1974-06-03
Abstract: 1469762 Milking machines M R LOLE 3 June 1974 [9 June 1973] 48721/76 Divided out of 1469761 Heading A1M  . The subject matter is the same as that of Specification 1469761 but the claims are concerned with milking parlour equipment for automatic teat cup removal and transfer of the milk from a receiver to a bulk storage vessel.
Patent GB-1317237-A (GB)
Title: Electric vacuum switches
IPC: H01H33/66
Filed: 1971-10-21
Abstract: 1317237 Vacuum switches INTERNATIONAL STANDARD ELECTRIC CORP 21 Oct 1971 [26 Oct 1970] 48900/71 Heading H1N In a vacuum switch a pair of rod contacts 5, 6, Fig. 1, fixed in the enclosure wall 4 are bridged by a shorting bar 15 mounted on a resilient portion 19 of the enclosure wall and movable as through a linkage support 17 in response to an externally applied force. The rod contacts 5, 6 are enclosed in alumina ceramic sleeves 20, 21 sealed at opposite ends by metal rings 22, 24 to the enclosure wall 4 and to the contacts 5, 6. The resilient portion 19 may comprise a diaphragm of stainless steel, vacuum sealed to a threaded stud 18 of the actuator. The inner metal liners 2, 3, 4, 19 and sleeves 20, 21 may be enclosed in a coating 27 of silicone rubber, fluorocarbon rubber or other yielding insulating material to which an outer conductive and earthed shield 28 may be applied. In modifications the fixed rod contacts may be mounted in rigid end pieces of thin flexible tubular enclosures of metal, one or more shorting bars being attached to the flexible tubular wall.
Patent GB-1123357-A (GB)
Title: Improvements in or relating to ventilating units
Inventor: GRIMES ERIC PETER ROLAND
IPC: F24F11/76
Filed: 1964-12-02
Abstract: 1,123,357. Ventilation. LONDON FAN & MOTOR CO. Ltd. 18 Feb., 1966 [2 Dec., 1964; 14 Jan., 1965], Nos. 49036/64 and 1779/65. Heading F4V. A ventilating unit comprises an outlet and at least two inlets, a fan for drawing air from either or both of the inlets, a damper for regulating the relative proportions of air drawn from the inlets in such a manner that, at a constant fan speed, the volume of air discharged by the fan is constant, an electric motor for moving the damper and a thermostat for controlling the motor via a potentiometer. As shown, the unit comprises a rectangular duct 1 having at one end a pair of flaps 15 and at the other end a frame 6 carrying louvres 7. Walls 9 carried by the vertical sides 8 of the frame 6 define an inner duct 10, which contains a fan 12, and a pair of outer ducts 14. The limiting positions of flaps 15 are respectively those in which they close the ends of ducts 14 and extend at rightangles to the sides of duct 1, and in the latter position the flaps are spaced apart to allow some flow of air therebetween. The positions of the flaps are controlled by an electric motor 21, actuated by a thermostat and potentiometer 22, which moves a rod 20 connected to the flaps by linkages 18, 19. In operation the unit is installed in an opening in the wall of a poultry house, the fan is rim at a constant speed and the relative proportions of air drawn from the interior of the poultry house through the end of duct 1 and air drawn from the exterior through ducts 14 for discharge to the exterior are governed by flaps 15. In a modification (Figs. 2 and 3, not shown), the unit comprises a curved duct (25) having an inlet (29) for room air and an outlet (28) to the room, a duct (30) for fresh air and a single pivoted flap (31) for controlling the relative proportions of fresh and room air circulated through the curved duct by a fan (26). The position of the flap is controlled by a motor (21) in response to a thermostat and potentiometer via a lever, wire and pulley system (33, 34, 35, 36, 37).
Patent GB-997306-A (GB)
Title: Improvements in or relating to railway vehicles
Inventor: HIRST ARCHIE JOHN
IPC: B61F5/08
Filed: 1961-11-17
Abstract: 997,306. Railway vehicle undercarriages. METALASTIK Ltd. Nov. 7, 1962 [Nov. 17, 1961], No. 49126/64. Divided out of 997,305. Drawings to Specification. Heading B7L. The subject-matter of this Specification is substantially the same as that described in Specification 997,305 but the claims are concerned with side bearers supporting the adjacent ends of a pair of articulated railway vehicles from a common bogie.
Patent GB-1057009-A (GB)
Title: High frequency velocity modulation electron discharge device having replaceable beam forming and projecting assemblies
IPC: H01J25/38
Filed: 1964-12-04
Abstract: 1,057,009. Velocity modulated tubes. VARIAN ASSOCIATES. Dec. 4, 1964 [Dec. 23, 1963], No. 49512/64. Heading H1D. A travelling wave tube or a klystron has an integrated gun structure including a cathode and anode, wherein the structure is sealed to the main tube body by use of a de-mountable highvacuum joint. The cathode, focusing electrode and main accelerating anode forms the integrated gun structure, and this is sealed to a main body portion which forms part of the vacuum envelope and surrounds the interaction structure of the tube. A mechanical seal is made by providing two flanges, e.g. of stainless steel, one on the gun structure and the other on the main body portion, the flanges being bolted together with a sealing, gasket of copper located therebetween, triangular ridge portions on each flange ensuring an extremely high pressure in the region of contact between the gasket and the flanges. Alternatively, the grin structure may be brazed to the main body portion using a brazing composition having a liquidus temperature which is lower than the solidus temperature of any other brazed joint in the vicinity of the seal.
Patent GB-1185428-A (GB)
Title: Improvements in Tractive Stress Sensing Devices for Farming Tractors.
IPC: A01B63/112
Filed: 1968-10-18
Abstract: 1,185,428. Tractor power lift mechanisms. REGIE NATIONALE DES USINES RENAULT. 18 Oct., 1968 [24 Nov., 1967], No. 49654/68. Heading A1P. A device for sensing traction force on draft rods 5 of a tractor consists of the rods 5 pivoted on lever 4 fixed on a shaft 1 extending through the tractor rear axle case 2 and is characterized in that the shaft 1 is mounted in an oil-tight manner in the casing 2 by means of elastic bushes 7 cemented both to the shaft and to the case. The return force to the shaft is provided by the elasticity of bushes 7 alone or aided by a spring 9 connected between the case 2 and a lever 8 fixed on the shaft 1.
Patent GB-1181119-A (GB)
Title: Improvements in Hank-Winding Frames
Inventor: SAVIO LUCIANO
IPC: B65H54/58
Filed: 1967-11-03
Abstract: 1,181,119. Hank winding machines. L. SAVIO. 3 Nov., 1967 [8 Nov., 1966], No. 49983/67. Heading D1J. A hank winding machine has at least two . hank winding reels 1 and 2 mounted on a frame F pivoted about an axis P such that the frame F can move an empty reel 2 into a hank winding location and at the same time move a full reel 1 to a reel-removing location is characterised in that there is swingable means 3 for causing a detachable yarn-fastening member 20 to snap onto one of the reel bars of the empty reel 2 in a manner clamping the yarn 16 extending from the full reel 1 onto said one reel bar of the empty reel 2, the swingable means 3 including a card-like member 4 capable of tangling with the yarn between the two reels. A yarn cutter 7 is carried by the bars 3. The yarn-fastening member 20 may be of resilient plastics material and is carried in a fork 6 resiliently mounted by means of slidable stem 12 and spring 11 on the arms 3.
Patent GB-1485580-A (GB)
Title: Time division switching systems
IPC: H04Q11/04
Filed: 1975-12-08
Abstract: 1485580 Automatic exchange systems WESTERN ELECTRIC CO Inc 8 Dec 1975 [23 Dec 1974] 50293/75 Heading H4K  A time division switching system in which port circuits served by different summing buses and port circuits served by the same summing bus are interconnected by circuitry providing a specified gain, includes means for increasing the gain to port circuits involved in connection served by the same bus and decreasing the gain for ports served by different buses. In the embodiment, the system has summing buses SUMA, SUMB, SUMT, distribution buses DISTA, DISTB, DISTT and summing amplifiers LA, TA. When the connection to be established involves two ports served by the same summing bus, e.g. ports A1 and An on bus SUMA, the summing resistor of the receiving line, e.g. RAN of port An, attenuates the net input to amplifier LA. To compensate this attenuation amplifier CLA is switched in series with bus DISTA by switch BLA, which is activated, via OR gate GLA, whenever a speech gate enable pulse is produced by shift registers SBA1 to SRAN of ports A1 to An. When a connection involves ports served by different summing buses, e.g. ports A1 and Bn two compensating amplifiers, e.g. CLA and CLB, are connected to the output of summing amplifier LA, since the input to amplifier LA is no longer attenuated by the shunting effect of BA1 and RAN in parallel. Attenuating pad resistors RPA, RPB at the inputs of amplifier CLA, CLB are thus shunted in parallel to the output of amplifier LA thereby attenuating the input to bus DISTB. When the two ports are not identical, e.g. line port A1 and trunk port Tn, two summing amplifiers are involved, e.g. LA, TA. To compensate for the additional gain in this case, an additional shunting resistor RTB is shunted across the output of amplifier LA, by switch TBI operated through OR gate GT and a shunting resistor RLB is shunted across the output of amplifier TA by switch LBI operated through OR gate GAB.
Patent GB-1126201-A (GB)
Title: Improvements in or relating to packets and like containers
IPC: A24F15/12
Filed: 1963-12-20
Abstract: 1,126,201. Packets. MOLINS ORGANISATION Ltd., and E. A. LUDDINGTON. 19 March, 1965 [20 Dec., 1963], No. 50352/63. Heading B8P. [Also in Division E2] A cigarette &c. packet having two parts 1, 2 movable towards each other to close the packet, has at least one tongue 11 projecting away from the plane of one part 2 towards the other part 1 and engageable in a corresponding facing hole 8 in the other part, the tip of the tongue and/or each hole having a coating of pressure-sensitive adhesive to hold the tongue in the hole when the packet is shut. As shown, three tongues 11 of substantially frusto-conical shape are provided upon one edge of the lid 2 of a cigarette packet and three holes 8 upon the facing edge of the packet body 1. Pressure-sensitive adhesive (12), Fig. 2 (not shown), is placed at the bottom of each hole 8. To limit the strength of the bond between the holes 8 and the tongues 11 when the packet is shut, the surfaces of one, e.g. the bottoms of the holes 8, may be roughened, and the surfaces of the other, e.g. the tongues, glazed &c., where engaged by the adhesive 12. Friction between the holes 8 and the tongues 11 may help to keep the packet shut. The body 1 and the lid 2 of the packet are moulded, and are hinged together; parallel grooves and ridges for cigarettes are formed in their inner surfaces.
Patent GB-1326262-A (GB)
Title: Biaxially stretched films of crystalline vinylidene chloride  copolymer
IPC: C08J5/18
Filed: 1970-10-23
Abstract: 1326262 Vinylidene chloride copolymer films KUREHA KAGAKU KOGYO KK 23 Oct 1970 [24 Oct 1969] 50374/70 Heading B5B A process for the production of biaxially oriented tubular films of a crystalline vinylidene chloride copolymer comprises melt extruding a tubular film comprising 100 parts by weight of a vinylidene chloride/vinyl chloride copolymer, up to 20 parts by weight of a plasticizer (e.g.  dibutyl sebacate) and up to 10 parts by weight stabilizer (e.g. epoxidized soybean oil), strongly heating the film to a temperature between 100‹ and 300‹ C. for 1 to 15 seconds, immediately biaxially stretching the film at the heated portion by inflation moulding under conditions which impart to the film a mimimum heat shrinkage stress of 100 (kg/cm<SP>2</SP>)<SP>2</SP> and maximum creep compliance of 60 x 10<SP>-4</SP> (%/kg/cm<SP>2</SP>)<SP>2</SP> and thereafter heat setting the thus oriented film, preferably at a temperature of 120‹-150‹ C. In an example the copolymer vinylidene used has a vinyl chloride copolymer ratio of 80 : 20 by weight.
Patent GB-1523589-A (GB)
Title: Electric cable terminations and glands and other fittings therefor
IPC: H02G3/06
Filed: 1975-11-20
Abstract: 1523589 Couplings for cable armourings BICC Ltd 20 Nov 1975 [21 Nov 1974 13 Feb 1975] 50578/74 and 6222/75 Heading H2E The annularly corrugated metal sheath 10 of a cable is secured to a cable gland 11 either by only one rigid annular member bearing on the two sides 8, 9 of a trough (see Fig. 1, not shown) or by two rigid annular members 1, 13 urged together to bear on the opposite sides 9, 15 of a crest, or of a small group of crests (not shown), or possibly urged axially apart to bear on the nearest sides of two crests (not shown). The member 1 is either engaged with the sheath as two or more parts which are screwed or otherwise joined together, or formed in situ (e.g. by casting or wrapping semi-cured resin bonded glass fibre tapes), although member 13 may be engaged in its position as an integral ring. The or each annular member may be insulating or at least one may be of a suitable metal to respectively isolate or connect the sheath and gland.
Patent GB-1211698-A (GB)
Title: Isolating switch for overhead power lines
IPC: H01H3/30
Filed: 1967-11-07
Abstract: 1,211,698. Electric circuit breakers. ZAKLADY ENERGETYCZNE OKREGU CENTRALNEGO. 7 Nov., 1967 [17 Nov., 1966], No. 50648/67. Heading H1N. A three-pole isolating switch comprises a two-pole switch unit I and a single-pole switch unit IV, both units being separately mounted on a single supporting post with their moving contacts interconnected for conjoint operation, and means responsive to overcurrent to effect the opening of the switch contacts, e.g. when the overcurrent ceases. The moving contacts 5, Fig. 3, are carried by rotatable insulators 4 which are interconnected by a shaft 17 and a link 6, the moving contacts 5 co-operating with fixed contacts 3 on fixed insulators 2. An operating handle V, Fig. 1, is connected by a rod 7, Fig. 3, to a drive member 25 loosely mounted on the shaft 17. The member 25 and members 18, secured to the shaft 17, are latched together by a latch 9 when the contacts are closed, the latch 9 being retained by a catch 19. When overcurrent occurs, a vertical rod 27 is raised, a delay being imposed by an hydraulic delay device 10. The end of the rod 27 engages an operating lever 20 of the catch 19. When the overcurrent device (not shown) releases, the rod 27 moves down turning the lever 20 and the catch 19. The latch 9 now turns sufficiently to release itself from the drive member 25 and a spring 8 then opens the contacts.
Patent GB-1224867-A (GB)
Title: A sample cup dispenser and vacuum mechanism
IPC: B01L3/00
Filed: 1969-01-21
Abstract: 1,224,867. Filter cup-dispenser and suction device. BECKHAM INSTRUMENTS Inc. 21 Jan., 1969 [22 Jan., 1968], No. 50873/69. Divided out of 1,224,865. Headings BID and BIX. The disclosure corresponds to that of Specification 1,224,865, but the claims relate to the filter cup dispenser and suction device illustrated in Figs. 5 to 9, which forms part of an automatic chemical analyser, described in Specification 1,224,863.
Patent GB-1375019-A (GB)
Inventor: MANIAR P N
IPC: B41J31/06
Filed: 1971-11-04
Abstract: 1375019 Ink - releasing member BURROUGHS CORP 4 Nov 1971 [18 Nov 1970] 51345/71 Heading D2B  A reusable ink-releasing member comprises a composite film substrate, a binder layer of a linear polyester material on at least one surface of the substrate, and a plastic inkreleasing layer on the binder, the composite film substrate having an overall thickness of 0.5 to 2.5 mils and being a polyester/polypropylene, polypropylene/polyvinylidene chloride, or polyester film/polyester fibre composite. The ink-releasing layer preferably comprises at least one organic resin, a coloured material which is a pigment or a dye and a pigment, and an organic liquid vehicle for the coloured material.
Patent GB-1528879-A (GB)
Title: Apparatus for regulating the wall temperature of a pressure vessel
IPC: G05D23/00
Filed: 1976-12-09
Abstract: 1528879 Temperature control DR C OTTO & COMP GmbH 9 Dec 1976 [18 Dec 1975] 51349/76 Heading G3R A pressure vessel 3 which runs hot in use (e.g. in a nuclear reactor) is cooled by air-flow in a surrounding space 16 within an outer (non-pressurized) vessel 15. The invention comprises a control system wherein a thermocouple 22 on the outer wall of the vessel 3 is connected via a controller 23 to an air-flow control element 21 and (optionally) to a motor-driven blower 24. The arrangement is such that there is always at least a small flow of air, the flow increasing if the sensed temperature exceeds a predetermined value.
Patent GB-1442287-A (GB)
Title: Electrically insulating artificial resin compositions
IPC: H01B3/00
Filed: 1974-11-28
Abstract: 1442287 Glass particle compositions SPRECHER & SCHUH AG and CARL ZEISS STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 28 Nov 1974 [7 Dec 1973] 51543/74 Heading C1M [Also in Division C3] A Ca aluminate glass, free from Si, B, and alkali metal oxide, may contain BaO, SrO, MgO, BeO, ZnO, Sb 2 O 3 , La 2 O 3 , Fe 2 O 3 , TiO 2 , ZrO 2 , and/- or P 2 O 5 . In an example, the glass consists, by wt., of 39À0% CaO, 45À0% Al 2 O 3 , 10À0% BaO, 3À0% TiO 2 , and 3À0% ZnO. The glass batch is fused at 1450-1600 C., and the glass can be atomized into balls or globules, e.g. of diameter size 0-100 Ám, at 1400-1500 C. Use.-Fillers for epoxy-resin compositions for insulators in switches.
Patent GB-516479-A (GB)
Abstract: 516,479. Interrupters. LUCAS, Ltd., J., and ALLEN, A., MASSEY-. June 28, 1938, No. 19106. [Class 38 (v)] The contact lever of a make and break ignition switch for motors is adjustably mounted on a subsidiary plate o, secured, by screws in slots, to an angularly adjustable main support e having a tubular extension f mounted in bearings, shown as ball bearings, in a housing c carried by a cover plate a. A shaft t bears the operating cam S and may drive the distributor through gearing v, w.
Patent GB-1503379-A (GB)
Title: Dog clutches
IPC: F16D11/10
Filed: 1975-12-17
Abstract: 1503379 Clutch release bearings; positive clutches POWERHOUSE ENG Ltd 17 Dec 1975 51748/75 Headings F2L and F2C A clutch release ball-bearing 30 provided between an axially movable clutch release sleeve 40 and an axially slidable clutch element (19) having axially extending clutch teeth 19a has dirt excluding flanges 46. The inner and outer races 30a, 30b of the bearing are secured to the clutch element (19) and sleeve 40 respectively by interference fits or by an adhesive. The bearing may be a sealed unit. The sleeve 40 has apertures or recesses 48, 49 engaged by a clutch release fork.